Right Triangle Trigonometry - Finding Side Lengths

Geometry

Name___________________________________

Right Triangle Trigonometry - Finding Side Lengths

Date________________

Step One: On each diagram below, label each side according to the position of the reference

angle. Your options are: Opposite, Adjacent, Hypotenuse.

1)

2)

x

14

16¡ã

12

52¡ã

x

3)

4)

19

x

22¡ã

x

13

69¡ã

Step Two: Complete the same process as practiced in Step One. Then, highlight the two sides

that have information provided. Once completed, determine which Acronym you will utilize to

set up your equation. Your options are: "SOH", "CAH", and "TOA".

5)

6)

x

11

10

65¡ã

64¡ã

x

7)

8)

x

x

47¡ã

59¡ã

19

16

-1-

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Worksheet by Kuta Software LLC

Step Three: Complete the same processes as practiced in Steps One and Two. Then, set up your

equation to solve for the missing side length.

9)

10)

x

15

x

58¡ã

20

49¡ã

Step Four: Complete the same processes as practiced in Steps One, Two, and Three. After you

have set up your equation, find the measure of the indicated side to the nearest tenth. (Utilize

the examples in your notebook)

11)

12)

18

x

51¡ã

21¡ã

17

x

-2-

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Worksheet by Kuta Software LLC

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